Mythbuster said:
How about:
Can god create existence ?
* If God can create existence. Then, non-existence is greater than Him.
* If God cannot create existence. Then, god cannot exist.
God is uncaused and therefore eternal.
Existence is uncaused and therefore eternal.
They are eternal because Time doesn't have a beginning.
If there is no beginning, there is no point of creation.
God did no create anything, Then God doesn't exist.
Some logical problems here.
Let's start with the basics of logic 'Nothing can both exist and not exist simultaneously in the same manner.
By definition 'non-existence' does not ever exist. It cannot be greater than anything therefore because something that does not exist has no properties of itself, only a lack of all properties of everything. It can therefore have no property that could make it greater than anything in any way.
'If God cannot create existence. Then, god cannot exist.' seems to be the common misunderstanding of omnipotence. This is a quality traditionally ascibed to God and implies being able to do all that it is possible to do, even if we cannot conceptualise the vastness of that. It does not mean being able to do that which is logically impossible. God cannot create four sided triangles because triangles by definition only have three sides. He cannot make something so heavy he cannot lift it etc. Likewise God cannot create Himself but He can be eternally existent and He could then create everything else (if he chose to do so).
If ‘Existence is uncaused and therefore eternal’ then the existence of time must also be eternal, or else there will be a time when the existence was, but time was not, and thus a time when time was not, a logical inconsistency. Your next line is therefore the wrong way round logically. Note that ‘non-existence’ having no properties (and therefore not having any property of time) can logically be the state before the creation of anything since the statement before the existence of anything there was total non-existence is logically true.
Your next line is simply a further reinstatement of the simple logic that if there is no beginning (eternal time) there is no finite point of creation (start time).
Even if 'God did no create anything', 'Then God doesn't exist' does not logically follow although it might be a different form of God to many theologies (He could be able to create but choose not to).
So apart from logical errors all these words represent is a statement that what is eternal did not begin at a finite time in the past. This is very much self evident and of itself proves absolutely nothing.
The following is valid logic (irrespective of theology).
First of all, to restate, 'Nothing can both exist and not exist simultaneously in the same manner (first rule of logic).
Therefore nothing can create itself (as it would have needed to exist before it existed in order to create itself).
So everything logically could not create itself from nothing.
Nothing could have existed eternally but this is provably false since something exists now. Note that this is not affected by theories of ‘dark-matter’ etc. since if that exists, it is another something to go with the other somethings in the universe. The logic of this is easily provable by taking any integer and pairing it with -1 times itself. The sum of all of these pairs is always zero (as stated by some to be the total energy matter equivalent of the universe) but the number of such numbers is always a positive even number. So although they summate to zero, they are actually not ‘nothing’ but a ‘something’. This sort of confusion between summation to zero and ‘non-existence’ seems to have led many modern astro-physicists to come up with universe origin theories which are actually not logically sound.
An eternal self existing entity of sufficient power, skill and knowledge could at some point create everything else in the universe including time. In other words an entity with no beginning could create a beginning for everything else. Whether you choose to believe in such an 'entity' or not does not affect the logic of the argument, which is valid.
The universe (in some form of matter/energy/time) could be eternal (the only other remaining logical possibility).
There are problems with an eternal universe in that all the evidence found in recent times seems to suggest the opposite (hence the popularity of 'Big Bang' over other theories).
You also have to resolve the problem of the second law of thermodynamics and the required resetting of entropy to zero or reversing of it or alternatively you have to prove that it does not apply at universe level. No one seems to have got very far with any provable theories in this last regard.
There is a very real problem in regard to entropy not increasing consistently in that our concept of the direction of time forwards is intrinsically related to entropy increase and thus variations in resetting entropy or reducing (or even in it remaining constant) could effectively reset time to zero, move it backwards or stop it. The properties and implications of a universe in eternity when time does not move forward consistently have to be conceptualised and that is not easy to do, being the creatures of time that we are. A form of existence outside of time is usually used by atheists to deride christian ideas of everlasting life but it follows logically if you start 'playing around' with entropy.
So at the present, the eternal 'entity' creating the universe is the best supported and most logical model able to be conceptualised.
regards,
Gordon.